Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)Įast China University of Science and Technology ( en Inventor 张莉 杨胜 徐宏 李建民 侯峰 徐鹏 Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Granted Application number CN2012101093324A Other languages Chinese ( zh) Google Patents CN102626734A - Spiral flat pipe roll forming machine for heat exchanging equipment CN102626734A - Spiral flat pipe roll forming machine for heat exchanging equipment